212064305136 has 40 divisors (see below), whose sum is σ = 550999473360. Its totient is φ = 70279497216.

The previous prime is 212064305111. The next prime is 212064305143. The reversal of 212064305136 is 631503460212.

212064305136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212064305097 and 212064305106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12760501 + ... + 12777108.

It is an arithmetic number, because the mean of its divisors is an integer number (13774986834).

Almost surely, 2^212064305136 is an apocalyptic number.

It is an amenable number.

212064305136 is an abundant number, since it is smaller than the sum of its proper divisors (338935168224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212064305136 is a wasteful number, since it uses less digits than its factorization.

212064305136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25537793 (or 25537787 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 212064305136 its reverse (631503460212), we get a palindrome (843567765348).

The spelling of 212064305136 in words is "two hundred twelve billion, sixty-four million, three hundred five thousand, one hundred thirty-six".